Is it okay to use Safari keychain with 1P?

Hi Dave....we are older and my spouse is not very computer literate! And with 1P she has to press a few keys.....so the idea is to keep 1P but add Mac Keychain so when we log in, keychain remembers the UN and password and no key strokes required. So my question is if we activate Keychain if it will interfere with 1P. We keep important information in 1P rather than just passwords for websites. Can we use both without a problem? Thanks for the 1P link. I will review and see if we have it set up to be as seamless a login as possible.